Net Income per Common Share

3 Months Ended

Mar. 31, 2013

Net Income per Common Share

10. Net Income per Common Share

The following summarizes the calculation of net income per common share attributable to common shareholders for the three months ended March 31, 2013 and 2012.

	Three Months Ended March 31,
(in thousands, except per share data)	2013			2012
Numerator:
Net income	$	26,098		$	29,360
Less: income allocated to unvested restricted shares		(195	)		(234	)
Net income attributable to common shareholders—basic		25,903			29,126
Add: undistributed income attributable to unvested restricted shares—basic		58			96
Less: undistributed income attributable to unvested restricted shares—diluted		(58	)		(96	)
Net income attributable to common shareholders—diluted	$	25,903		$	29,126
Denominator:
Weighted average shares outstanding—basic		62,687			62,802
Dilutive shares—stock options		58			99
Weighted average shares outstanding—diluted		62,745			62,901
Net income per share attributable to common shareholders:
Basic	$	0.41		$	0.46
Diluted	$	0.41		$	0.46